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| region of interest | |||
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研究区域 : 45 phrases in 9 subjects |
| Advertising | 1 |
| Earth sciences | 12 |
| Geology | 1 |
| Librarianship | 3 |
| Name of organization | 14 |
| Space | 1 |
| Technology | 5 |
| United Nations | 7 |
| Water resources | 1 |
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